Electronic piano



FIG. 1 is a front and top perspective view of an electronic piano, showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

The dashed broken lines in the figures illustrate portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for an electronic piano, as shown and described. 